Thanks!!! The problem was solved by switching ICM method from "ICM Handled by Host System" to "ICM Handled by Printer" in driver properties.
The reason is that printers don't understand Transparency, they try to print them because they know there is something there.
The Fix is to use Overprinting, or "Composite Overprint" but these options are not available on most non-production level printers.
Some Applications have the option, like Acrobat/Reader for instance, they can "Simulate Overprint" to help reduce these kinds of issues.
Typically found via File > Print > Advanced (In General "Let printer determine color" is much better enabled, so I highlighted it, but it relates in no way to your specific issue. It solves most commonly when Blues are purple and reds are magenta)
The Print as image option will surely fix the issue as it flattens the document before sending it, so the transparency will be eliminated, it will also fix any font issue that can be seen as the font is removed and replaced as a picture of the letters. But all of this is assuming Acrobat/Reader/Indesign types of Workflow, and could mostly be eliminated in those same applications by saving using pdf/x instead of plain pdf. PDF/x is designed for print, works in all the same applications, but it embeds all the things printers need in the file and flattens them as well.
So, outside of the application level and content creation there is very little in the driver to try. The only option I can think of is to use the PCL driver, or disable color correction in the PS driver here
But those methods are just educated guesses, and would be used only when the whatever application you are using has no option to either Overprint or Flatten the data being sent first.
Lastly, I just realized you may be saying the entire document has a yellow tone, if that is the case there is either a hardware issue, probably in the yellow drum/imaging unit. Or a setting in the screenshot above in Color correction.
When I'm printing tables or pictures with white backgound color XEROX PHASER 7500 prints them in light-yellow. If there no-color or transparent - all OK. How to reset this light-yellow colors into white?
Solved! Go to Solution.